Save time & aggravation by answering the following questions before you start your literature review.
1. What's my topic or question?
Ex. Sugared drinks are a main cause of the obesity epidemic
2. What are my main concepts?
Ex. 1. Sugared drinks; 2. Obesity
3. What are other terms or synonyms for my topics?
Ex. Sugared drinks - soft drinks, soda, cola, juice, sport drinks; Obesity - obese, overweight, fat
4. What types of sources or materials can I use?
Ex. journal articles, books, evidence-based guidelines
5. Putting it together
Ex. (Sugared drinks OR soft drinks OR soda OR cola Or juice) AND (Obesity OR overweight) AND (guideline OR random*)
Now that you know your topic & your terms, choose the database(s) that you'll use. Read below & on the next column for tips on how to find articles using the terms you listed in questions 2 & 3 above.
If you have questions, ask us at http://libraryguides.missouri.edu/contact
Many databases tag terms to the articles -- similar to tagging your social media posts.
The agreed-upon, standard terms used in library catalogs and databases are called subject headings or descriptors.
The subject headings in a catalog or database record will often help you locate more books/articles that are similar. It works much as "find more like this" or "find similar" links do elsewhere.
Truncation -
find all words starting with the letters you have typed. Most common truncation symbol is the asterisk * Wildcard
- used to substitute letters inside a word Exact Phrase - use quotation
marks around your term to get that exact phrase
Ex,
obes* = obese, obesity
child* = child, childhood, childlike, children
Ex. wom*n = woman
OR women
colo*r = color OR colour
Ex. "high
fructose corn syrup"
Most databases have pull
down menus that let you select which field you want to search.
Your searches will work best in most databases if you break your topic apart and then combine the concepts with AND/OR. This is called Boolean logic and is named after a mathematician
AND - narrows your searches
Ex. Obesity AND Sugared drinks
OR - broadens your searches
Ex. sugared drinks OR sweetened beverages OR soft drink*
Most databases will have pull down boxes where you can select AND or OR.
You can also use these together by using parenthesis.
(obesity OR overweight) AND (sugared drinks OR sweetened beverage* OR soft drink* OR juice OR sports drinks)
The above in pictures
OR - gets all the info from both circles
AND - gets only the info where the circles overlap